Gauge cock and blow-off valve



Sept.- s@, 19%, 11,530,199

G. ODUM GAUGE COCK AND BLOW-OFF VALVE Filed 1922 Patented ept. Il

a rat.

GEQE (lDUEI, OF CHICAGO, ILLINOIS.

eanen coon nan anew-oar vvn a lication filed January a, ma. eel-a1 ataataa To all whom it my camera.-

Be it known that I, Gnonen ODUM, a citizen of the United States ofAmerica, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful lm rovements in GaugeCocks and Blow-Ofi alves, of which the following is a specification.

This invention relates to an improvement ingauge cocks and blow ofvalves, and is directed particularly to combining therewith an auxiliaryor turbinoid valve adapted in the use otthe improvement to be operatedby the passage of steam or the like thru the valve, in order to maintainclearance of the passages.

- The main object of the present invention is the provision of a valveof this character involving a turbinoid valve adapted in the passage ofthe. steam to be rotated, with the stems or extensions of such turbinoidvalve. formed to prevent the accumulation of foreign substances or scalein the valve passages.

A further object of the invention is the provision of means foroperating the valve so arranged in conjunction with the. valve properthat the operating means may be removed for renewal or'repair while thevalve is in use or under pressure.

The invention in the preferred form oil details is illustrated in theaccompanying drawings, in which:

Fig. 1 is a longitudinal section partly in elevation, showin theimproved valve.

Fig. 2 is an e evation to Fig. 2.

Fig. 4 is a plan of the valve. The improved gauge cock and blow ofivalve comprises a vertically disposed casing 1, formed for the greaterportion of its length with a longitudinal bore 2, interiorly threaded at3. The bore 2 is enlarged at the lower end of the msing as at It, andthreaded thruout the; enlargement as at 5. The upper end of the casingis formed with a central depression 6 of materially eater diameter thanthat of the bore 2 an communicating with the latter thru a comparativelysmall or reduced passage 7. The casing is further channel 8communicating with the'bore 2 and extending thru the wall of the casing,this channel 8 being preferably threaded at or the turbinoid providedwith a lateral 9 for the reception of a pressure gauge or blow oficonnection (not shown).

' The depression 6 in the upper end of the casing 1 is designed toreceive a closure preferably in the form of a nut 10, having a portion11 to cooperate with the threads of the wall of the depression, and anen larged bod 12 overlying the upper end of the wall 0 the depressionand also serving as a means whereby the nut member may be connected toor disconnected from the casing. The upper end of the member 10 is ofreduced diameter at 13 and exteriorly threaded at 141 to form theconnection of the valve casing.

The interior of the member 10 is formed thruout' the reduced portion 13with a comparativel small bore 15, and throughout the interior of thatportion of the member included by the nut-like formation with amaterially enlarged bore at 16, the bores 15 and. 16 forming a passagecommunicating with thereduced passage 7 V The auxiliary 0r turbinoidvalve includes a non-circular, preferably triangular, stem or extension17, which slides in the restricted bore 15, with the maximum transversedimension of said stem slightly less than the diameter of the bore 15.The valve proper 18 is secured on the lower end of the stem 17, and hasa lower conical portion 19 arranged to cooperate with a seat ,20, formedat the upper end of the reduced passage 7. Below the conical portion 19,the turbinoid valve member is formed with an extension 21 having amaximum dimension somewhat less than the diameter of the passage. 7, anda minimum dimension materially less than the diameter at the passage 7.The valve proper 18 immediately above that portion thereof whichdirectly cooperates with the seat 20, is formed with recesses orchannels 22 extendingat adecided inclination to the longitudinal axis ofthe valve, as clearly shownin liigs. 2 and 3, thewalls of these channelsserving as vanes to insure rotation of the turbinoid valve member in thepassage of the steam or other fluid under pressure past the valve. V

The operating member for the valve includes a rod 23 formed at anintermediate point of the diameter 2 with. threads a cooperating withthe threads'B of the bore 2.

" Above this threaded portion, the rod is reduced in diameteras at atand formed in.

the upper end with a depression or hole 25,

1n which is loosely mounted a. stem 26 of a conical member 27 the upperpointed end of which is in line with the extension 21 of the turbinoidvalve number. Below ,the threadedly engaging portion of the operatingrod 23, said rod is also reduced in diameter as at 28 and extends beyondthe lower end of the bore 2 where it is preferably of angular formationas at 29 to receive a suitable operating handle 30. A packing gland 31is arranged to cooperate with the threads 5 of the enlar ed portion 4 ofthe bore 2, thus sealing this end of the bore around the operating rod.

In operation, it is apparent that by proper manipulation of the rod 23,the turbinoid valve member may be moved longitudinall and raised fromits seat and thereby permit a flow of steam or other fluid underpressure thru the passage 15 past the valve into the bore 2 and out theoutlet 9 to the blow oif connection or gauge. In this passage of thesteam or other fluid under ressure, the impact thereof on the walls of te recesses 22 causes a rotation of the turbinoid valve member on thepoint of the conical operating member 27 as a sup ort. In this rotationof the turb'inoid va ve member, the stein,

17 and extension 21 act to effectively scrape any accumulation of scaleor other forei substance from the passages 15 and :7, thus maintainingthe passages clear for a proper operation.

When it is necessary or desired to renew the element 27, or to repairother parts of the operating means, it is obvious that propermanipulation of the rod 23 ipermits the valve proper 18 to seat, cuttingo the fluid outlet, whereupon by removal of the gland 31, the operatingmember may be readily Wlthr drawn and parts renewed or repaired. Theseating'of the valve proper 18 will of course prevent the escape of anfluid, and thus renewal or repair may be while the valve is in place andunder pressure from the boiler or the like.

Obviously the invention is readily adapted for use in connection withthe discharge and effected, even valve.

receiving valves in air puir'ps on locomotives.

Claims: 4

l. A gauge cock or blow off valve including a vertically disposed casingformed with a longitudinal bore, a reduced passage above andcommunicating with said bore and forming a valve seat at its upper end,a passage above said reduced passage and having communication therewithan .outlet in the casing communicating with the bore below said reducedpassage, :1 member operative in said bore for adjustment longitudinallythereof, and a turbinoid valve cooperating with said seat and havingextensions at its ends with maximum dimensions approximating thediameterof the respec tive passages in which said extensions arelocated, the operating member being adapted to engage one of saidextensions to lift the valve from its seat, said valve having inclinedchannels to receive the fluid under pressure and rotate the valve.

2. A gauge cook or blow ofi valve including a vertically disposed casingformed with a longitudinal bore, a reduced passage above andcommunicating with said bore and forming a valve seat at its upper end,a passage above said reduced passage and having comnmn'icationtherewith; an outlet in the casing communicating with the bore belowsaid reduced passage, a member op erative in said bore for adjustmentlongi-- tudinally thereof, and a turbinoid valve cooperating with saidseat and having extensions at its ends with mlaximum dimensionsapproximating the diameter of the respective passa es in which saidextensions are located, t e operating member being adapted to engage oneof said-extensions to lift the valve from its seat, said valve havinginclined channels to receive the fluid under pressure and rotate thevalve, the upper end of the operating member comprising a conicalportion relnovably mounted therein to provide a point support for theturbinoid afiix my signature.

In testimony wnereof I 1 GEO. ODUM.

